Apparatus for anchoring masonry to concrete structures



Jan. 15, 1935. J. R. JOHNSON 1,988,124

APPARATUS FOR ANCHORING MASONRY TO CONCRETE STRUCTURES Filed March 24,1934 f m i X' ATTORNEY I Patented Jan. 15, 1935 UNITED STATES issa zlAPPARATUS FOR ANCHORING MASONRY TO CONCRETE STRUCTURES James RossJohnson, San Francisco, Calif., assignor to Forderer Cornice Works, acorporation of California Application March 24, 1934, Serial No. 717,186

8 Claims.

This invention relates to improvements in apparatus for anchoringmasonry to concrete structures.

The various kinds of metal inserts or channel members now commonly usedin concrete structures to provide mortise anchoring means for masonrysupporting anchors, embody constructions which are fairly susceptible todisfigurement or distortion. It is frequently found, after the hardeningof a concrete structure within which an insert is imbedded that thelatters metal walls have been pressed out of shape to a point that thenormal anchor receiving slot or channel has been narrowed or otherwiseconsiderably deformed. In such an instance an anchor which wouldnormally fit within the insert sometimes cannot be used until a part ofits side edge is filed or cut away tomake provision for the operativepositioning of the anchor within the insert. Not only is it ofconsiderable inconvenience to bring about a proper fit between theanchor and the insert after the latter has been bent out of shape, butit is also a circumstance ordinarily resulting in a loss of time andmoney. In order to overcome this difficulty I have provided an improvedchannel member or insert for use with concrete structures which, whenbent out of shape by the ordinary stresses or pressures occasionedduring installation, is still capable of accommodating a standard anchormember without the necessity of adjustments of any kind.

An object of my invention is to provide an improved channel member foruse as a slot forming insert for concrete structures, embodying a novelconstruction which permits the mounting therein of anchor plates eventhough the normal shape of the said member has been somewhat distortedduring installation by the pressure of the concrete against the same.

Another object of my invention is to provide an insert for concretestructures having an improved and novel construction which includes twoinwardly disposed flanges which are capable of being adjusted, if thecircumstances so require, so as to allow a standard anchor member to beused with the insert in the usual manner without the necessity of changeor structural modification.

A further object of my invention is to provide improved masonrysupporting apparatus for use with concrete structures, embodying acombination including a novel channel member adapted to be imbedded in aconcrete structure and an anchor device capable of being adjustablymounted and held in an operative position within the channel member.

Other objects more or less apparent will present themselves or will bespecifically pointed out in the description of my invention which is tofollow.

In the accompanying drawing:

Fig. 1 is a transverse sectional view of a fragmentarypart of a concretestructure with a form board not yet removed, showing the manner in whichmy improved slot forming channel member or insert is attached to theform board;

Fig. 2 is a transverse sectional view showing my improved channel membernot distorted and with an anchor member operatively mounted therein;

Fig. 3 is a similar view showing the channel member in a somewhatdistorted condition;

Fig. 4 is a side view of an anchor member constructed in accordance withmy invention;

Fig. 5 is a longitudinal section of another type of anchor memberembodying my invention; and

Fig. 6 is a perspective view of a channel member embodying my invention.

Referring to the drawing the numerals 1 indicate the oppositely disposedside walls of an elongated channel member which is constructedpreferably from galvanized sheet iron or other suitable material. Theside walls 1 are joined together by a rear wall 2 having a number ofnail openings 3 therein which are normally closed by removable discs 4.Each of the discs 4 normally closing an opening 3 is held inplace bythin metal connections which are easily broken when a nail is to bepassed through the opening. The nail receiving openings 3 being normallyclosed even when not in use, do not afford means for allowing plasticconcrete to pass into the interior of the channel member when the latteris being installed in a concrete structure. The two oppositely disposedside Walls 1, I assume inwardly inclined positions commencing at theirjuncture with the rearwall 2 and ending at points as at 5, justforwardly of their central portions, at which said points they areslightly bent outwardly and assume approximately parallel positions. Theforward ends of the walls 1, 1 are bent inwardly to provide inwardlyinclined flanges 6 which, by reason of the slight resiliency afiorded bythe material from which the device is made are capable of being pressedoutwardly to provide flexible means adapted to firmly engage with theopposite side edges of an anchor plate or member '7.

In ordinary practice the channel member is nailed to a form board withits open side located against that side of the said board later becomingthe inner face of a form within which the plastic concrete material issubsequently poured. After the plastic material forming the concretestructure has hardened and the form boards have been removed, thechannel member presents an open slot within which anchor members 7 forsupporting masonry of various kinds can be inserted and held. That partof the anchor member which is to become located within the channelmember, is cut away at opposite sides to provide inwardly inclined sideedges 8, the degree of inclination of which it greater than the degreeof inclination of the sides 1 of the channel member. Thus, asillustrated in Fig. 3, if the sides of the channel member are forcedinwardly through the pressure of the concrete or for any other cause,the anchor member will still be able to fit within the said channelmember. In such an event the inwardly disposed flanges 6 or" the channelmember are capable of being forced outwardly when the anchor member isplaced in operative position within the said channel member. The flanges6, by reason of the resiliency of the material from which the device ismade, firmly engage with the side edges of the narrow neck portion ofthe anchor member and tend to prevent the latter from wabbling.

The anchor member is preferably provided with a flange 9 at its inwardlydisposed end which normally engages with the rear side 2 of the channelmember, thereby providing additional means tending to hold the anchormember in a horizontal position. The anchor members illustrated in Figs.2 and 3 are each provided at its outwardly disposed end with an upturnedflange 10 operatively engaging with the plastic binding materialordinarily located between the bricks which are mounted against aconcrete structure. In the form shown in Fig. 4 the outwardly disposedend of the anchor member may be cut at or near its center so as to allowflanges 12 and 13 to be ent in opposite directions. In the formillustrated by Fig. 5 a projecting car 14 may be provided on the mainbody portion of the anchor member. As is well known in the art, thechannel members may be employed to maintain various types of masonrysupporting anchors in proper operative positions against a concretestructure.

It is understood that my improved channel member and the anchorsassociated therewith are susceptible to various changes in regard tosize, shape and minor details of construction. It is therefore to beunderstood that the limits my invention may assume shall be controlledby the appended claims rather than by the exact disclosures herein made.

Having described my invention what I claim is:

1. An insert comprising a channel member having inclined flangesprojecting inwardly from its side walls, and an anchor piece having aportion adjustably retained in the channel member, the said portion ofthe anchor piece having its opposite side edges inclined inwardly andnormally disposed in spaced relation to the side walls of the channelmember.

2. In an insert for concrete structures, a channel member havinginwardly inclined side walls and inwardly inclined yieldable flangesextending from the said side walls and an anchor member having anenlarged portion normally retained inside the channel member, theopposite sides of the enlarged portion being inclined inwardly andnormally positioned in spaced relation to the side walls of the channelmember.

3. In an insert for concrete structures, a channel member having itsopposite side walls inv'" 'dly inclined, inwardly inclined yieldableflanges extending from the side walls, and a flat anchor plate mcvablyextending into the channel member having an outwardly bent flangethereon, the said anchor plate being engaged at opposite side edges bythe inclined flanges.

4. In an insert for concrete structures, a channel member havingintegrally formed rear and side walls inwardly extending yieldableflanges projecting from the side walls, and anchor means extending intothe channel member, the said anchor plate having an outwardly turnedflange normally in engagement with the rear wall, and the said anchorplate being engaged at opposite sides by the flanges.

5. In an insert for concrete structures, a channel member comprising arear wall, oppositely disposed side walls formed integrally with therear wall, the said side walls having portions inclined toward eachother and other portions lying in substantially parallel planes andoppositely disposed inwardly inclined flanges formed integrally with thefront ends of the side walls.

6. In an insert for concrete structures, a channel member havinginwardly inclined side walls. an anchor plate having a portionadjustably retained in the channel member, the said portion havingopposite side edges located adjacent the said side walls, the said sideedges of the anchor plate being inclined inwardly to a greater extentthan the normal inclination of the side walls, and yieldable inwardlydisposed flanges extending from the side walls and positioned inengagement with opposite side edges of the anchor plate.

'I. In apparatus of the kind described, an anchor member comprising aplate having a portion adapted to be retained inside a channel member,the said portion having an outwardly disposed flange on its end, andanother portion at the opposite end of the plate having oppositelydisposed flanges thereon.

3. An anchor member for the purpose described comprising a plate havinga portion at one end adapted to extend inside a channel member, aportion at its opposite end which terminates in an outwardly disposedflange, and the said plate having an outwardly disposed tongue on itsbody portion at points intermediate its two end portions.

J. ROSS JOHNSON.

